155045323 has 4 divisors (see below), whose sum is σ = 161786448. Its totient is φ = 148304200.

The previous prime is 155045311. The next prime is 155045381. The reversal of 155045323 is 323540551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323540551 = 379 ⋅853669.

It is a cyclic number.

It is not a de Polignac number, because 155045323 - 2²¹ = 152948171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155045291 and 155045300.

It is not an unprimeable number, because it can be changed into a prime (155045123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3370528 + ... + 3370573.

It is an arithmetic number, because the mean of its divisors is an integer number (40446612).

Almost surely, 2^155045323 is an apocalyptic number.

155045323 is a deficient number, since it is larger than the sum of its proper divisors (6741125).

155045323 is an equidigital number, since it uses as much as digits as its factorization.

155045323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6741124.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 155045323 is about 12451.7196804297. The cubic root of 155045323 is about 537.2208875739.

Adding to 155045323 its reverse (323540551), we get a palindrome (478585874).

The spelling of 155045323 in words is "one hundred fifty-five million, forty-five thousand, three hundred twenty-three".